Championship clubs Middlesbrough and AFC Bournemouth have condemned "vile" racist social media abuse sent to Yannick Bolasie and Arnaut Danjuma.
Both players posted details of racist online messages they had received, with Boro's on-loan Everton winger Bolasie calling abusers "keyboard warriors".
Danjuma's message followed an interview in which he expressed frustration at criticism of the taking a knee gesture.
Boro said the abuse was "unacceptable" and the Cherries said it "has to stop".
Bournemouth also reiterated their support for Netherlands forward Danjuma, 24, by adding: "Thank you for speaking up and we stand with you.